BMS Battery Protection Board 3S 20A 12.6V 18650

📄 Description
The 3S 20A BMS Protection Board is designed to safeguard 3-cell (3S) lithium-ion battery packs (12.6V nominal), typically built from 18650 cells. It provides essential safety features including overcharge protection, over-discharge protection, overcurrent, and short circuit protection, ensuring battery longevity and safe operation.

Equipped with cell balancing functionality, it enhances battery performance by equalizing voltage across cells during charging. Ideal for electric bikes, power tools, energy storage, and DIY battery pack projects.

🔧 Specifications:

• Battery Configuration: 3S (3 cells in series)

• Nominal Voltage: 12.6V (Li-ion)

• Max Continuous Discharge Current: 20A

• Charge Voltage: 12.6V max

• Protection Features: Overcharge, over-discharge, overcurrent, short circuit

• Balancing: Yes (cell balancing)

• Operating Temperature: -20°C to 60°C

• PCB Size: Approx. 60 × 35 mm (may vary)

• Compatible Cells: 18650 Lithium-ion

🎯 Applications:

• DIY lithium-ion battery pack building

• Electric bikes and scooters

• Portable power banks and energy storage

• Power tools battery packs

• RC models and drones

✅ Why Buy from Engineering Electronics?

• Tested and genuine BMS boards

• Competitive pricing in Bangladesh

• Fast and reliable nationwide delivery

📦 Package Includes:

• 1 × 3S 20A Battery Protection Board (BMS) for 12.6V 18650 packs